Derivative Financial Instruments - Balance Sheet Location and Fair Value of Assets Associated with Derivative Financial Instruments (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Other Current Liabilities
Derivatives, Fair Value [Line Items]
Foreign exchange contracts: Warranty reserve and other current liabilities	$ 79	$ 125
Other Current Assets
Derivatives, Fair Value [Line Items]
Foreign exchange contracts: Prepaid expenses and other current assets	$ 68	$ 687